From: Yang Weijiang <weijiang.yang@intel.com>
To: Sean Christopherson <sean.j.christopherson@intel.com>
Cc: Yang Weijiang <weijiang.yang@intel.com>,
kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
pbonzini@redhat.com, jmattson@google.com,
yu.c.zhang@linux.intel.com
Subject: Re: [PATCH v11 1/9] KVM: VMX: Introduce CET VMX fields and flags
Date: Fri, 24 Apr 2020 21:44:07 +0800 [thread overview]
Message-ID: <20200424134407.GD24039@local-michael-cet-test> (raw)
In-Reply-To: <20200423163948.GA25564@linux.intel.com>
On Thu, Apr 23, 2020 at 09:39:48AM -0700, Sean Christopherson wrote:
> On Thu, Mar 26, 2020 at 04:18:38PM +0800, Yang Weijiang wrote:
> > If VM_EXIT_LOAD_HOST_CET_STATE = 1, the host CET states are restored
> > from below VMCS fields at VM-Exit:
> > HOST_S_CET
> > HOST_SSP
> > HOST_INTR_SSP_TABLE
> >
> > If VM_ENTRY_LOAD_GUEST_CET_STATE = 1, the guest CET states are loaded
> > from below VMCS fields at VM-Entry:
> > GUEST_S_CET
> > GUEST_SSP
> > GUEST_INTR_SSP_TABLE
> >
> > Co-developed-by: Zhang Yi Z <yi.z.zhang@linux.intel.com>
> > Signed-off-by: Zhang Yi Z <yi.z.zhang@linux.intel.com>
> > Signed-off-by: Yang Weijiang <weijiang.yang@intel.com>
> > ---
>
> ...
>
> > diff --git a/arch/x86/include/asm/vmx.h b/arch/x86/include/asm/vmx.h
> > index 5e090d1f03f8..e938bc6c37aa 100644
> > --- a/arch/x86/include/asm/vmx.h
> > +++ b/arch/x86/include/asm/vmx.h
> > @@ -94,6 +94,7 @@
> > #define VM_EXIT_CLEAR_BNDCFGS 0x00800000
> > #define VM_EXIT_PT_CONCEAL_PIP 0x01000000
> > #define VM_EXIT_CLEAR_IA32_RTIT_CTL 0x02000000
> > +#define VM_EXIT_LOAD_HOST_CET_STATE 0x10000000
> >
> > #define VM_EXIT_ALWAYSON_WITHOUT_TRUE_MSR 0x00036dff
> >
> > @@ -107,6 +108,7 @@
> > #define VM_ENTRY_LOAD_BNDCFGS 0x00010000
> > #define VM_ENTRY_PT_CONCEAL_PIP 0x00020000
> > #define VM_ENTRY_LOAD_IA32_RTIT_CTL 0x00040000
> > +#define VM_ENTRY_LOAD_GUEST_CET_STATE 0x00100000
>
> I think it probably make senses to drop HOST/GUEST from the controls,
> i.e. VM_{ENTER,EXIT}_LOAD_CET_STATE. The SDM doesn't qualify them with
> guest vs. host, nor does KVM qualify any of the other entry/exit controls
> that are effective guest vs. host.
Sure, will fix them, thanks.
next prev parent reply other threads:[~2020-04-24 13:42 UTC|newest]
Thread overview: 54+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-26 8:18 [PATCH v11 0/9] Introduce support for guest CET feature Yang Weijiang
2020-03-26 8:18 ` [PATCH v11 1/9] KVM: VMX: Introduce CET VMX fields and flags Yang Weijiang
2020-04-23 16:07 ` Sean Christopherson
2020-04-24 13:39 ` Yang Weijiang
2020-04-23 16:39 ` Sean Christopherson
2020-04-24 13:44 ` Yang Weijiang [this message]
2020-03-26 8:18 ` [PATCH v11 2/9] KVM: VMX: Set guest CET MSRs per KVM and host configuration Yang Weijiang
2020-04-23 16:27 ` Sean Christopherson
2020-04-24 14:07 ` Yang Weijiang
2020-04-24 14:55 ` Sean Christopherson
2020-04-25 9:14 ` Yang Weijiang
2020-04-25 13:26 ` Paolo Bonzini
2020-04-26 15:26 ` Yang Weijiang
2020-03-26 8:18 ` [PATCH v11 3/9] KVM: VMX: Set host/guest CET states for vmexit/vmentry Yang Weijiang
2020-04-01 2:23 ` kbuild test robot
2020-04-23 17:17 ` Sean Christopherson
2020-04-24 14:35 ` Yang Weijiang
2020-04-24 14:49 ` Sean Christopherson
2020-04-25 9:20 ` Yang Weijiang
2020-04-27 17:04 ` Sean Christopherson
2020-04-27 17:56 ` Sean Christopherson
2020-03-26 8:18 ` [PATCH v11 4/9] KVM: VMX: Check CET dependencies on CR settings Yang Weijiang
2020-04-23 17:20 ` Sean Christopherson
2020-04-24 14:36 ` Yang Weijiang
2020-03-26 8:18 ` [PATCH v11 5/9] KVM: X86: Refresh CPUID once guest XSS MSR changes Yang Weijiang
2020-04-23 17:34 ` Sean Christopherson
2020-04-24 14:47 ` Yang Weijiang
2020-04-25 13:19 ` Paolo Bonzini
2020-04-26 15:01 ` Yang Weijiang
2020-03-26 8:18 ` [PATCH v11 6/9] KVM: X86: Load guest fpu state when access MSRs managed by XSAVES Yang Weijiang
2020-03-26 8:18 ` [PATCH v11 7/9] KVM: X86: Add userspace access interface for CET MSRs Yang Weijiang
2020-03-28 7:40 ` kbuild test robot
2020-04-23 18:14 ` Sean Christopherson
2020-04-24 15:02 ` Yang Weijiang
2020-04-24 15:10 ` Sean Christopherson
2020-04-25 9:28 ` Yang Weijiang
2020-04-25 15:31 ` Paolo Bonzini
2020-04-26 15:23 ` Yang Weijiang
2020-04-27 14:04 ` Paolo Bonzini
2020-04-28 13:41 ` Yang Weijiang
2020-03-26 8:18 ` [PATCH v11 8/9] KVM: VMX: Enable CET support for nested VM Yang Weijiang
2020-04-23 18:29 ` Sean Christopherson
2020-04-24 15:24 ` Yang Weijiang
2020-03-26 8:18 ` [PATCH v11 9/9] KVM: X86: Set CET feature bits for CPUID enumeration Yang Weijiang
2020-03-27 4:41 ` kbuild test robot
2020-04-23 16:56 ` Sean Christopherson
2020-04-24 14:17 ` Yang Weijiang
2020-04-23 16:58 ` Sean Christopherson
2020-04-24 14:23 ` Yang Weijiang
2020-03-26 8:18 ` [kvm-unit-tests PATCH] x86: Add tests for user-mode CET Yang Weijiang
2020-04-23 15:51 ` [PATCH v11 0/9] Introduce support for guest CET feature Sean Christopherson
2020-04-24 13:31 ` Yang Weijiang
2020-04-23 16:03 ` Sean Christopherson
2020-04-24 13:34 ` Yang Weijiang
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